CN102410120A - Holding member for fuel injection valve - Google Patents
Holding member for fuel injection valve Download PDFInfo
- Publication number
- CN102410120A CN102410120A CN201110325259XA CN201110325259A CN102410120A CN 102410120 A CN102410120 A CN 102410120A CN 201110325259X A CN201110325259X A CN 201110325259XA CN 201110325259 A CN201110325259 A CN 201110325259A CN 102410120 A CN102410120 A CN 102410120A
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- China
- Prior art keywords
- cap
- fuel
- mentioned
- holding member
- installation base
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
- F02M61/145—Arrangements of injectors with respect to engines; Mounting of injectors the injection nozzle opening into the air intake conduit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/04—Injectors peculiar thereto
- F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
- F02M69/044—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into the intake conduit downstream of an air throttle valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/03—Fuel-injection apparatus having means for reducing or avoiding stress, e.g. the stress caused by mechanical force, by fluid pressure or by temperature variations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/855—Mounting of fuel injection apparatus using clamp elements or fastening means, e.g. bolts or screws
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/856—Mounting of fuel injection apparatus characterised by mounting injector to fuel or common rail, or vice versa
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
A holding member for a fuel injection valve is capable of holding, on a throttle body (1), the fuel injection valve (10) formed by inserting a fuel injection part (11) at one end of the fuel injection valve into a mounting hole (4) formed in the throttle body. A fuel joint part (27) to which a fuel feed pipe (33) is connected is formed of a synthetic resin integrally with a mounting boss part (26) joined to the throttle body (1) so that the fuel joint part and the mounting boss part can be integrally connected to a cap part (21) fitted liquidtight to the outer periphery of a fuel inlet part (12) at the other end of the fuel injection valve (10). The mounting boss part (26) is connected to the cap part (21) to the inner periphery of the cap part (21) at a portion axially apart from the fitting surface (22) thereof to the fuel inlet part (12). Thus, since the heat shrinkage of the mounting boss part does not affect the inner peripheral surface of the cap part when the holding member for the fuel injection valve is molded, the liquid-tightness of the fitting part of the fuel inlet part to the cap part of the fuel injection valve can be secured.
Description
The application on September 21st, 2007 submit to, application number is PCT/JP2006/305209, denomination of invention is divided an application for the patent application of " holding member for fuel injection valve ".
Technical field
The present invention relates to the improvement of holding member for fuel injection valve; This holding member for fuel injection valve remains on Fuelinjection nozzle on the gas-entered passageway parts; The fuel injection portion of one end of above-mentioned Fuelinjection nozzle is inserted in the mounting hole that on the gas-entered passageway parts, is provided with; The cap liquid of holding member for fuel injection valve thickly is inlaid in the fuel inlet portion periphery of the other end of Fuelinjection nozzle; With on this cap, be connected with integratedly the fuel connector portions that is communicated with in inner and this cap and with the mode of the installation base portion of above-mentioned gas-entered passageway part bonding, by synthetic resin they being shaped integratedly forms.
Background technique
Above-mentioned holding member for fuel injection valve is as known disclosed in the following patent documentation 1.
Patent documentation 1: TOHKEMY 2002-54937 communique
In above-mentioned holding member for fuel injection valve in the past; Because the outstanding installation base that is provided with on the outer circumferential face corresponding with the chimeric surface of cap; So when it is shaped; Because of the influence of the thermal shrinkage of installation base portion might deform on the chimeric surface of cap, should distortion if take place, impair the fluid-tight reliability of embedding part of fuel inlet portion and the cap tabling of Fuelinjection nozzle.
Summary of the invention
The present invention In view of the foregoing accomplishes; Its purpose is to provide a kind of holding member for fuel injection valve; This holding member for fuel injection valve makes the thermal shrinkage of installation base portion not influence the inner peripheral surface of cap when being shaped, thereby can guarantee the close property of liquid of embedding part of fuel inlet portion and the cap tabling of Fuelinjection nozzle.
For reaching above-mentioned purpose; First of holding member for fuel injection valve provided by the invention is characterised in that; This holding member for fuel injection valve remains on Fuelinjection nozzle on the gas-entered passageway parts; The fuel injection portion of one end of this Fuelinjection nozzle is inserted in the mounting hole that on the gas-entered passageway parts, is provided with, and the cap liquid of holding member for fuel injection valve thickly is flush-mounted in the fuel inlet portion periphery of the other end of Fuelinjection nozzle, with on this cap, be connected with integratedly the fuel connector portions that is communicated with in inner and this cap and with the mode of the installation base portion of above-mentioned gas-entered passageway part bonding; By synthetic resin with they integrally formed forming; Wherein, in above-mentioned cap week, the position from leaving vertically with above-mentioned fuel inlet portion chimeric chimeric surface, above-mentioned installation base portion is connected with cap.
In addition, above-mentioned gas-entered passageway parts corresponding to after state the throttle valve body 1 in the embodiments of the invention.
In addition, the present invention is on the basis of first characteristic, and it second is characterised in that a pair of installation base portion and a fuel connector portions dispose around cap dispersedly.
In addition, the present invention is on the basis of first characteristic, and it the 3rd is characterised in that, a little less than the rigidity of rigidity than cap of the joint between cap and installation base portion.
In addition; The present invention is on the basis of second characteristic; It the 4th is characterised in that, above-mentioned a pair of installation base portion is configured to, in the plane view of this holding member; The axis that the axis of two installation base portions becomes with above-mentioned cap is two other summit of the virtual triangle on a summit, the above-mentioned fuel connector portions of configuration in the scope of above-mentioned leg-of-mutton, relative with the drift angle of the axis side of cap vertical angles.
In addition, the present invention is on the basis of the 4th characteristic, and it the 5th is characterised in that, on the peripheral part of above-mentioned Fuelinjection nozzle outstanding be provided with receives electricity with the scope of coupler configuration in above-mentioned vertical angles.
In addition, the present invention is on the basis of the 4th characteristic, and it the 6th is characterised in that above-mentioned drift angle is set at the obtuse angle.
In addition, the present invention is on the basis of the 4th characteristic, and it the 7th is characterised in that, the distance from the axis of above-mentioned cap to above-mentioned installation base portion is set at about equally.
In addition, the present invention is on the basis of the 5th characteristic, and it the 8th is characterised in that the center line of above-mentioned fuel connector portions and the above-mentioned center line angulation that receives electricity with Coupler are set at more than 50 °.
In addition; The present invention is characterised in that the 9th, a kind of holding member for fuel injection valve, and this holding member for fuel injection valve remains on Fuelinjection nozzle on the gas-entered passageway parts; The fuel injection portion of above-mentioned Fuelinjection nozzle one end is inserted in the mounting hole that on the gas-entered passageway parts, is provided with; The cap liquid of holding member for fuel injection valve thickly is flush-mounted on the fuel inlet portion periphery of Fuelinjection nozzle the other end, with on this cap, be connected with integratedly the fuel connector portions that is communicated with in inner and this cap and with the mode of the installation base portion of above-mentioned gas-entered passageway part bonding, by synthetic resin with they integrally formed forming; Wherein, In above-mentioned cap week, the position from leaving vertically with above-mentioned fuel inlet portion chimeric chimeric surface, above-mentioned installation base portion is connected with cap, above-mentioned a pair of installation base portion is configured to; In the plane view of this holding member; The axis that the axis of two installation base portions becomes with above-mentioned cap is two other summit of the virtual triangle on a summit, and the drift angle of the axis side of above-mentioned leg-of-mutton, cap is set at the obtuse angle, and in the scope of the vertical angles relative with this drift angle the above-mentioned fuel connector portions of configuration.
In accordance with a first feature of the invention; Since in cap week, the position from leaving vertically with fuel inlet portion chimeric chimeric surface; Installation base portion is connected with cap; So when the shaping holding member, even produce thermal shrinkage in installation base portion, its influence can not feed through to above-mentioned chimeric surface yet.Therefore, can guarantee not have the good chimeric surface of distortion all the time, be embedded at this chimeric surface and across seal ring between the fuel inlet portion of this chimeric surface and remain good sealing state, thereby can prevent the leakage of fuel under high pressure reliably.
In addition; According to second characteristic of the present invention, because centering on cap, a pair of installation base portion and a fuel connector portions dispose dispersedly, therefore when safeguarding; Be installed at holding member under the installment state of throttle valve body; From fuel connector portions loading and unloading fuel feed pipe the time, the load that the fuel connector portions is born is dispersed in the two installation base portions via the cap balance well, can realize small-sized, the lightweight of two installation base portions even holding member thus.
In addition; According to the 3rd characteristic of the present invention, because a little less than the rigidity of rigidity than cap of the joint between cap and installation base portion, so when safeguarding; When carrying out with respect to fuel connector portions loading and unloading fuel feed pipe or when receiving electricity to use Coupler with Coupler loading and unloading power supply; Under the situation that applies big load on the cap, moderately crooked through the joint that makes thin-walled, can prevent the fuel inlet portion of Fuelinjection nozzle 10 and the embedding part of cap tabling are applied excessive load; Therefore avoid the distortion of above-mentioned embedding part, thereby can prevent the leakage of fuel.
According to the 4th characteristic of the present invention; A pair of installation base portion and a fuel connector portions dispose around cap 21 dispersedly; Thereby when safeguarding; Holding member is being installed under the installment state of gas-entered passageway parts, with respect to fuel connector portions loading and unloading fuel feed pipe the time, can be not being interfered and loading and unloading easily by miscellaneous part; And the load that the fuel connector portions is born disperses well via the cap balance and is bearing in the two installation base portions, therefore can help small-sized, the lightweight of two installation base portions even holding member.
In addition; According to the 5th characteristic of the present invention; Because the electricity that receives of Fuelinjection nozzle also is configured in the scope of above-mentioned vertical angles with Coupler; Therefore when safeguarding, remain on through holding member under the state on the gas-entered passageway parts, when receiving electricity to use Coupler with Coupler loading and unloading power supply at Fuelinjection nozzle; The load that Fuelinjection nozzle is born disperses well via the cap balance and is bearing in the two installation base portions, and this also helps small-sized, the lightweight of two installation base portions even holding member.
In addition; According to the 6th characteristic of the present invention; When with respect to fuel connector portions loading and unloading fuel feed pipe; Can make load that the fuel connector portions born via cap more balance disperse well and be bearing in the two installation base portions, and when when receiving electricity to use Coupler with Coupler loading and unloading power supply, can make load that Fuelinjection nozzle bears via cap more balance disperse well and be bearing in the two installation base portions.
In addition, according to the 7th characteristic of the present invention, each installation base portion can help small-sized, the lightweight of holding member through roughly under the equal conditions cap being carried out stable supporting.
In addition, according to the 8th characteristic of the present invention, when safeguarding, can not interfere each other and, can help the raising of assembling performance easily with respect to fuel connector portions loading and unloading fuel feed pipe and with respect to receiving electricity to use Coupler with Coupler loading and unloading power supply.
In addition; According to the 9th characteristic of the present invention, special-purpose Fuelinjection nozzle is being remained in the holding member on the gas-entered passageway parts since in cap week, the position from leaving vertically with fuel inlet portion chimeric chimeric surface; A pair of installation base portion is connected with cap; So when the shaping holding member, even produce thermal shrinkage in installation base portion, its influence can not feed through to above-mentioned chimeric surface yet.Therefore, can guarantee not have the good chimeric surface of distortion all the time, remain good sealing state, can prevent the leakage of fuel under high pressure reliably thereby be embedded at this chimeric surface and across seal ring between the fuel inlet portion of this chimeric surface.And; A pair of installation base portion and a fuel connector portions are around reasonably configuration dispersedly of cap 21; Thereby when safeguarding, holding member is being installed under the installment state of gas-entered passageway parts, the time with respect to fuel connector portions loading and unloading fuel feed pipe; Can do not interfered and loading and unloading easily by miscellaneous part; And the load that the fuel connector portions is born disperses well via the cap balance and is bearing in the two installation base portions, and when when receiving electricity to use Coupler with Coupler loading and unloading power supply, can make load that Fuelinjection nozzle bears via cap more balance disperse well and be bearing in the two installation base portions.Therefore, can help small-sized, the lightweight of two installation base portions even holding member.
Above-mentioned and other purposes of the present invention, characteristic and advantage from following according to accompanying drawing to after can understand the detailed description carried out of the preferred embodiment stated.
Description of drawings
Fig. 1 is that expression uses the holding member of the first embodiment of the present invention Fuelinjection nozzle to be installed in the plan view of the state on the throttle valve body of motor.(first embodiment)
Fig. 2 is the sectional drawing along the 2-2 line of Fig. 1.(first embodiment)
Fig. 3 be along Fig. 13 to view.(first embodiment)
Fig. 4 is the worm's eye view of above-mentioned holding member.(first embodiment)
Fig. 5 is the sectional drawing along the 5-5 line of Fig. 4.(first embodiment)
Fig. 6 be along Fig. 46 to view.(first embodiment)
Fig. 7 is the sectional drawing (second embodiment) of the expression second embodiment of the present invention.
Label declaration
1: gas-entered passageway parts (throttle valve body);
4: mounting hole;
10: Fuelinjection nozzle;
11: fuel injection portion;
12: fuel inlet portion;
14: receive electricity to use Coupler;
20: holding member;
21: cap;
22: chimeric surface;
26: installation base portion;
27: the fuel connector portions;
28 ': the thin-walled joint;
30: virtual triangle;
33: fuel feed pipe;
34: Coupler is used in power supply;
A: the axis of installation base portion;
B: the axis of cap;
C: the center line of fuel connector portions;
D: receive the center line of electricity with Coupler;
α: drift angle triangle 30, cap axis side;
β: vertical angles;
θ: center line C and D angulation.
Embodiment
Below, according to accompanying drawing the preferred embodiments of the present invention are described.
Embodiment 1
In Fig. 1～Fig. 3; Throttle valve body 1 as the gas-entered passageway parts of motor; Has the intake duct 2 that links to each other with the suction port of diagram motor in addition; This intake duct 2 is opened and closed and regulates the valve shaft 3a of throttle valve 3 of butterfly of the air inflow of motor, can be rotated to support on the throttle valve body 1.More on the sidewall of the throttle valve body 1 in downstream side, be formed with mounting hole 4 and fitting seat 5 than this throttle valve 3, this mounting hole 4 is opened on the intake duct 2 beyond the diagram, and this fitting seat 5 is expanded along radial direction from the outer end periphery of this mounting hole 4.
On the other hand; Be installed on this throttle valve body 1 electro-magneto fuel injector 10 at one end portion have fuel injection portion 11; Has fuel inlet portion 12 in the other end; On their periphery of intermediate portion, be formed with plastic crust 13, this crust 13 is shaped with the mode casting mold of imbedding the inner coil portion of encapsulation, on this crust 13, form one of which side-prominent receive electricity with Coupler 14.
On the periphery of Fuelinjection nozzle 11 roots, the mode that connects with the end face with crust 13 is equipped with the buffering ring 15 of the rubber system with sealing function.And in the seal groove 16 of the ring-type of the periphery that is formed at fuel inlet portion 12, the O shape ring 17 as sealed member is installed.
The fuel injection portion 11 of this Fuelinjection nozzle 10 is inserted in the above-mentioned mounting hole 4 of throttle valve body 1, and above-mentioned buffering ring 15 and above-mentioned fitting seat 5 are overlapping.These Fuelinjection nozzle 10 compression buffering rings 15, and be synthesized resinous holding member 20 maintenances.
With reference to Fig. 1, Fig. 4～Fig. 6, this holding member 20 is described.
Holding member 20 has cap cylindraceous 21 as main body.The inner peripheral surface of this cap 21 is by columned chimeric surface 22; Constitute with the guide surface 23 of the taper that forms at the inlet side of this chimeric surface 22; The fuel inlet portion 12 of above-mentioned Fuelinjection nozzle 10 is through this guide surface 23 and embed in the chimeric surface 22, thereby above-mentioned O shape ring 17 is closely contacted with this chimeric surface 22.
In addition, on the 21a of the top of cap 21, be formed with: backstop section portion 24, this backstop section portion 24 extends to the radial direction inboard from the inner of chimeric surface 22; And recess 25, this recess 25 is in the central part of this backstop section portion 24 and is opened on chimeric surface 22 sides, end face and this backstop section portion 24 butts of above-mentioned fuel inlet portion 12, thus fuel limitation entrance part 12 is inserted into the insertion depth in the cap 21.
In addition, on the 21a of top, form: to the installation base portion 26,26 of the outstanding pair of cylinders shape in its outside; Fuel connector portions 27 with a tubulose.Two installation base portions 26,26 are configured with their axis A, the A mode parallel with the axis B of cap 21, and are connected with the top 21a of cap 21 via thin tabular joint 28.In addition, the part of the fuel connector portions 27 of tubulose becomes the bulge 27a of top 21a upper surface, side-prominent to top 21a, and the inside of this fuel connector portions 27 is communicated with the above-mentioned recess 25 of top 21a internal surface.Between above-mentioned bulge 27a and each installation base portion 26, be formed with the rib 29,29 that they are coupled together.
Like this, a pair of installation base portion 26,26 is connected with the top 21a of cap 21 at the position of leaving vertically from chimeric surface 22.And these installation base portions 26,26 are configured to, and in the plane view of holding member 20, their two axial lines A, A become two other summit as the virtual triangle 30 on a summit with the axis B of cap 21.At this moment, the distance between the axis B of the axis A of each installation base portion 26 and cap 21 is set to about equally.In addition, above-mentioned triangle 30, be set at the obtuse angle with the apex of the axis B side of cap 21.And fuel connector portions 27 is configured in the scope of the vertical angles β relative with above-mentioned apex.In addition, as shown in Figure 1, holding member 20 is being installed in 10 last times of Fuelinjection nozzle, with Fuelinjection nozzle 10 receive electricity with the mode in the scope of the above-mentioned vertical angles β of Coupler 14 entering, come the sense of rotation position of fuel limitation injection valve 10.
The holding member 20 that is made up of cap 21, cap 21, installation base portion 26,26 and fuel connector portions 27 as stated is shaped by synthetic resin integratedly, and metal axle sleeve 31 is pressed into or casting mold is bonded on the inner peripheral surface of each installation base portion 26. Installation base portion 26,26 is fixed on the throttle valve body 1 by bolt 35,35 respectively.In addition; Locator protrusions 32 is outstanding integratedly to be arranged on the outer circumferential face of cap 21; With this locator protrusions 32 is the electric position with Coupler 14 that receives that benchmark comes fuel limitation injection valve 10; Through this restriction, fuel connector portions 27 be configured to Coupler 14 by electricity, their center line C, D angulation θ are more than 50 °.
And, on fuel connector portions 27, be connected with illustrate outside the fuel feed pipe 33 that links to each other of the exhaust port of petrolift, supply power with Coupler 34 be connected with on Coupler 14 by electricity.
Next the effect to this first embodiment describes.
When Fuelinjection nozzle 10 being installed in 1 last time of throttle valve body, in the cap 21 of holding member 20, the fuel inlet portion 12 of Fuelinjection nozzle 10 is pressed into to its end face and backstop section portion 24 butts, O shape ring 17 is closely contacted with chimeric surface 22.And; As above-mentioned, set Fuelinjection nozzle 10 receive electricity with the installation base portion 26 of Coupler 14 and holding member 20, the situation that concerns the position between 26 under; The fuel injection portion 11 of Fuelinjection nozzle 10 is inserted in the mounting hole 4 of throttle valve body 1, and shock absorber was placed on the fitting seat 5 in 15 years.Then, by bolt 35,35 installation base portion 26,26 is fixed on the predetermined position of throttle valve body 1.
And; Installation base portion 26,26 is anchored on the fastening force of throttle valve body 1 through bolt 35,35; From the backstop section portion 24 of cap 21 via Fuelinjection nozzle 10 as compression force on shock absorber 15, Fuelinjection nozzle 10 is by its reaction force yielding support.
In the operation process of motor; The fuel under high pressure that petrolift beyond the diagram is discharged; From the fuel connector portions 27 fueling injection valves 10 of fuel feed pipe 33,, sprays by this valve 10 when opening then from the suction port of fuel injection portion 11 to motor through holding member 20.
In addition; In plastic holding member 20, a pair of installation base portion 26,26 be connected cap 21, from the position that the fuel inlet portion 12 chimeric chimeric surfaces 22 with Fuelinjection nozzle 10 leave vertically, so when shaping holding member 20; Even installation base portion 26,26 produces thermal shrinkage; Its influence can not feed through to above-mentioned embedding face 22 yet, therefore, owing to can guarantee not have the good chimeric surface 22 of distortion all the time; So this chimeric surface 22 and between the chimeric fuel inlet portion 12 of O shape ring 17 and above-mentioned chimeric surface 22, remain good sealing state can prevent the leakage of fuel under high pressure reliably.
Particularly, owing to two installation base portions 26,26 are connected on the top 21a of cap 21 via tabular joint 28, so can interdict the influence of the thermal shrinkage of two installation base portions 26,26 effectively to above-mentioned chimeric surface 22 at tabular joint 28.And; Because two installation base portions 26,26 are connected via rib 29,29 on the part of fuel connector portions 27 of the bulge 27a that becomes the top of cap 21 21a upper surface; So can improve the join strength of two installation base portions 26,26 and top 21a, can keep Fuelinjection nozzle 10 securely.
In addition; Two installation base portions 26,26 are configured to; In the plane view of holding member 20, the axis B that their two axial lines A, A become with cap 21 is two other summit of the triangle 30 on a summit, because fuel connector portions 27 is configured in the scope of vertical angles β above-mentioned triangle 30, relative with the apex of the axis B side of cap 21; Therefore 26,26 and fuel connector portions 27 decentralized configuration of a pair of installation base portion are around cap 21; When safeguarding, be installed at holding member 20 under the installment state of throttle valve body 1, when the time with respect to fuel connector portions 27 loading and unloading fuel feed pipes 33; Can not receive miscellaneous part to interfere ground loading and unloading easily, and the load that fuel connector portions 27 is born disperse to be bearing in the two installation base portions 26,26 well via cap 21 balances.In addition; Because the electricity that receives of Fuelinjection nozzle 10 also is configured in the scope of above-mentioned vertical angles β with Coupler 14; Therefore when maintenance; Fuelinjection nozzle 10 is being remained on by holding member 20 under the state of throttle valve body 1,, can disperse well via the balancing the load that cap 21 is born Fuelinjection nozzle 10 to be bearing in the two installation base portions 26,26 when when receiving electricity to supply power with Coupler 34 with Coupler 14 loading and unloading.Can realize small-sized, the lightweight of two installation base portions 26,26 even holding member 20 thus.Particularly through above-mentioned apex is set at the obtuse angle, such effect can be more remarkable.
In addition; Through with the distance setting between the axis B of the axis A of each installation base portion 26 and cap 21 for about equally; Each installation base portion 26 can roughly stably support cap 21 under the equal conditions, also can help small-sized, the lightweight of holding member 20 thus.
In addition; The fuel connector portions 27 of holding member 20 is configured to Coupler 14 with the electricity that receives of Fuelinjection nozzle 10; Their center line C, D angulation θ are more than 50 °; Therefore when safeguarding, can not have interference each other and, can help the raising of assembling performance easily with respect to fuel connector portions 27 loading and unloading fuel feed pipes 33 and with respect to receiving electricity to load and unload power supply with Coupler 34 with Coupler 14.
Next the second embodiment of the present invention shown in Figure 7 is described.
In this second embodiment; In plastic holding member 20; On the guide surface 23 opening portion peripheries of cap 21; Via a pair of installation base of the thickness joint 28 thinner than the wall of cap 21 ' be connected with portion 26,26, and these installation base portions 26,26 keep little sides that are configured in cap 21 with gap.Other structure is identical with the structure of the foregoing description 1, therefore in the drawings with the corresponding part of the foregoing description on be marked with identical with reference to label, and omission repeat specification.
In this second embodiment; With forming synthetic resin holding member 20 time; Even installation base portion 26,26 produces thermal shrinkage; The thermal shrinkage of joint 28 ' blocking installation base portion 26,26 that also can be through thin-walled is to the influence of the interior chimeric surface 22 of cap 21, and is same with the foregoing description, can guarantee not have the good chimeric surface 22 of distortion all the time.
In addition; Owing to connect a little less than the rigidity of cap 21 and installation base portion 26, the thin-walled joint 28 between 26 ' than cap 21; Therefore when safeguarding, when with respect to fuel connector portions 27 loading and unloading fuel feed pipes 33 with when receiving electricity to supply power with Coupler 34, if there is big load to be applied on the cap 21 with Coupler 14 loading and unloading; Then through above-mentioned joint 28 ' moderately bending; Can prevent that excessive load is applied on the embedding part of fuel inlet portion 12 and cap 21 tablings of Fuelinjection nozzle 10, has therefore avoided the distortion of above-mentioned embedding part, thereby can prevent the leakage of fuel.
More than embodiments of the invention are illustrated, but the invention is not restricted to this, can in the scope that does not break away from purport of the present invention, carry out various design alterations.
Claims (1)
1. holding member for fuel injection valve; This holding member for fuel injection valve remains on Fuelinjection nozzle (10) on the gas-entered passageway parts (1); The fuel injection portion (11) of above-mentioned Fuelinjection nozzle (10) one ends is inserted at gas-entered passageway parts (1) and goes up in the mounting hole (4) that is provided with; The cap of holding member for fuel injection valve (21) liquid thickly is flush-mounted on fuel inlet portion (12) periphery of Fuelinjection nozzle (10) the other end; On this cap (21), to be connected with the mode of fuel connector portions (27) that is communicated with in inner and this cap (21) and the installation base portion (26) that engages with above-mentioned gas-entered passageway parts (1) integratedly;, it is characterized in that they integrally formed forming by synthetic resin
In above-mentioned cap (21) week, the position from leaving vertically with above-mentioned fuel inlet portion (12) chimeric chimeric surface (22), above-mentioned installation base portion (26) is connected with cap (21),
Above-mentioned a pair of installation base portion (26) is configured to, and in the plane view of this holding member (20), the axis (B) that the axis (A) of two installation base portions (26) becomes with above-mentioned cap (21) is two other summit of the virtual triangle (30) on a summit,
The drift angle (α) of axis (B) side above-mentioned triangle (30), cap (21) is set at the obtuse angle, and in the scope of the vertical angles (β) relative with this drift angle (α), disposes above-mentioned fuel connector portions (27).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005-083607 | 2005-03-23 | ||
| JP2005083607A JP4125732B2 (en) | 2005-03-23 | 2005-03-23 | Mounting structure of fuel injection valve |
| JP2005-083606 | 2005-03-23 | ||
| JP2005083606A JP4125731B2 (en) | 2005-03-23 | 2005-03-23 | Holding member for fuel injection valve |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800093194A Division CN101146993B (en) | 2005-03-23 | 2006-03-16 | Holding member for fuel injection valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102410120A true CN102410120A (en) | 2012-04-11 |
| CN102410120B CN102410120B (en) | 2014-10-08 |
Family
ID=37023656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110325259.XA Expired - Fee Related CN102410120B (en) | 2005-03-23 | 2006-03-16 | Holding member for fuel injection valve |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1862667B1 (en) |
| CN (1) | CN102410120B (en) |
| BR (1) | BRPI0607319B1 (en) |
| ES (1) | ES2421918T3 (en) |
| WO (1) | WO2006100995A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022220B (en) * | 2010-12-13 | 2012-10-03 | 奇瑞汽车股份有限公司 | Engine cover cap |
| JP6256918B2 (en) * | 2014-09-30 | 2018-01-10 | 本田技研工業株式会社 | Injector assembly |
| DE102015209650A1 (en) * | 2015-05-27 | 2016-12-01 | Bayerische Motoren Werke Aktiengesellschaft | fuel injector |
| JP2018132033A (en) * | 2017-02-17 | 2018-08-23 | 株式会社ニッキ | Fuel supply device of two-cylinder general purpose engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06221252A (en) * | 1993-01-26 | 1994-08-09 | Toyota Motor Corp | Fuel supplying device for internal combustion engine |
| CN1222641A (en) * | 1997-11-18 | 1999-07-14 | 艾拉西斯·西斯特玛·里瑟卡·菲亚特·耐尔·麦兹奥吉奥尔诺有限公司 | Device for fastening and sealing metering valve in internal combustion engine fuel injector |
| JP2000054937A (en) * | 1998-08-07 | 2000-02-22 | Keihin Corp | Fuel injection valve mounting device in fuel injection device for single-cylinder internal combustion engine |
| US6192865B1 (en) * | 1998-11-25 | 2001-02-27 | Honda Giken Kogyo Kabushiki Kaisha | Fuel injection apparatus for vehicular engine |
| JP2002364487A (en) * | 2001-06-08 | 2002-12-18 | Mitsubishi Electric Corp | Fuel supply device in cylinder direct fuel injection type internal combustion engine |
| CN1512055A (en) * | 2002-12-02 | 2004-07-14 | ���＼�й�ҵ��ʽ���� | Fue supply structure for small vehicle engine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08121285A (en) * | 1994-10-27 | 1996-05-14 | Hitachi Ltd | Fuel supplying device and fuel supplying system |
| JP3316148B2 (en) * | 1996-03-01 | 2002-08-19 | 愛三工業株式会社 | Fuel distribution device |
-
2006
- 2006-03-16 WO PCT/JP2006/305209 patent/WO2006100995A1/en active Application Filing
- 2006-03-16 CN CN201110325259.XA patent/CN102410120B/en not_active Expired - Fee Related
- 2006-03-16 ES ES06729206T patent/ES2421918T3/en active Active
- 2006-03-16 EP EP06729206.0A patent/EP1862667B1/en not_active Not-in-force
- 2006-03-16 BR BRPI0607319-0A patent/BRPI0607319B1/en active IP Right Grant
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06221252A (en) * | 1993-01-26 | 1994-08-09 | Toyota Motor Corp | Fuel supplying device for internal combustion engine |
| CN1222641A (en) * | 1997-11-18 | 1999-07-14 | 艾拉西斯·西斯特玛·里瑟卡·菲亚特·耐尔·麦兹奥吉奥尔诺有限公司 | Device for fastening and sealing metering valve in internal combustion engine fuel injector |
| JP2000054937A (en) * | 1998-08-07 | 2000-02-22 | Keihin Corp | Fuel injection valve mounting device in fuel injection device for single-cylinder internal combustion engine |
| US6192865B1 (en) * | 1998-11-25 | 2001-02-27 | Honda Giken Kogyo Kabushiki Kaisha | Fuel injection apparatus for vehicular engine |
| JP2002364487A (en) * | 2001-06-08 | 2002-12-18 | Mitsubishi Electric Corp | Fuel supply device in cylinder direct fuel injection type internal combustion engine |
| CN1512055A (en) * | 2002-12-02 | 2004-07-14 | ���＼�й�ҵ��ʽ���� | Fue supply structure for small vehicle engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102410120B (en) | 2014-10-08 |
| ES2421918T3 (en) | 2013-09-06 |
| EP1862667A4 (en) | 2011-06-08 |
| BRPI0607319A2 (en) | 2009-09-01 |
| BRPI0607319B1 (en) | 2020-02-11 |
| EP1862667A1 (en) | 2007-12-05 |
| WO2006100995A1 (en) | 2006-09-28 |
| EP1862667B1 (en) | 2013-07-10 |
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